EP2308638B1 - Precision grinding machine for precision grinding of a workpiece - Google Patents
Precision grinding machine for precision grinding of a workpiece Download PDFInfo
- Publication number
- EP2308638B1 EP2308638B1 EP10009901A EP10009901A EP2308638B1 EP 2308638 B1 EP2308638 B1 EP 2308638B1 EP 10009901 A EP10009901 A EP 10009901A EP 10009901 A EP10009901 A EP 10009901A EP 2308638 B1 EP2308638 B1 EP 2308638B1
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- European Patent Office
- Prior art keywords
- nozzle
- axis
- hard finish
- machine according
- tool
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- 239000005068 cooling lubricant Substances 0.000 claims description 18
- 238000003754 machining Methods 0.000 claims description 16
- 239000002826 coolant Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 14
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/02—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding
- B23F5/04—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding the tool being a grinding worm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
Definitions
- the invention relates to a hard finishing machine for hard finishing a workpiece, comprising at least two different hard finishing tools, which are arranged on a tool spindle, wherein the tool spindle is arranged displaceably in the direction of its axis on a tool carrier, which is translationally displaceable relative to a machine bed, and wherein the Hard finishing machine further hasdeschmierstoffzutn Mittel for the supply of cooling lubricant to the processing point between the workpiece and hard finishing tool.
- Such a machine is for example in the DE 299 00 753 U1 disclosed.
- Such hard finishing machines are used for example in gear production as gear grinding machines.
- a division of the oversize to be ground is often provided, so that the gear is first scrubbed and then sifted.
- a grinding worm can be used, in which case continuous rolling grinding is used;
- the sizing can be done with a profile grinding wheel in the profile grinding process.
- profile grinding typically uses lower cutting speeds between 25 and 35 m / s.
- This method requires a secure cover of the entire grinding wheel profile through the coolant jet. Depending on the respective profile width and height, this results in the requirement for a relatively large nozzle outlet cross-section, wherein a coolant jet with a low outlet velocity and low pressure, but sets a relatively high volume flow.
- the worm-like tools used for generating grinding are usually much wider than the pure engaging width resulting from the engagement of the tool and the workpiece.
- the purpose of this is to be able to use various shift methods to grind the gears in a special way:
- Y-axis discontinuous shifting in the tool axis direction
- Y-axis can be a targeted influencing the tooth flank topology and / or surface structure.
- the coolant nozzles used here can be made rigid, d. H. be optimized for a specific, non-variable workpiece diameter, which is particularly recommended for non-dressable CBN grinding tools whose diameter does not change.
- variable diameter tools d. H. Namely for dressable grinding tools, the coolant nozzles can be installed so that they are arranged in a plane which is perpendicular to the axis of the tool spindle, movable, so that the coolant nozzle can be tracked with decreasing tool diameter accordingly.
- the adjustment of the nozzle position to the current tool diameter can be done by a rotary or by a translational movement.
- the workpiece is either machined only with a single tool (eg with a dressable grinding worm, roughing and finishing takes place with different width ranges of the same tool) or two tools of the same type and the same size are used Use (eg dressless profile grinding with CBN roughing and flattening disc).
- a single tool eg with a dressable grinding worm, roughing and finishing takes place with different width ranges of the same tool
- two tools of the same type and the same size are used Use (eg dressless profile grinding with CBN roughing and flattening disc).
- a combination of several tools or machining methods of different types is usually used when machining a plurality of teeth of the same workpiece in one clamping (eg. Gear shafts) or when machining a toothing with different methods for roughing and finishing (eg roughing with dressable generating grinding, finishing with non-directional profile grinding - as explained in the beginning).
- a plurality of nozzles are arranged on the carriage of the Y-axis, which ride with the carriage, wherein the nozzles do not change their position relative to the respective tool.
- the disadvantage in this case is as follows: In order to be able to use the abovementioned shift method in the case of hobbing with a helical tool, a nozzle traveling on the slide of the Y-axis must be as wide as the entire tool, ie significantly wider. as would be required due to the effective engagement width between tool and workpiece. With a constant exit height of the nozzle opening, the widening of the nozzle also increases the nozzle cross-section, which is in contradiction to the conditions considered optimal for generating grinding. Also in this case, the processing can only be reduced due to the non-optimal conditions of the coolant supply. Feed speed and thus with longer Processing times and therefore be carried out with reduced cost.
- the solution of this object by the invention is characterized in that thedeschmierstoffzu slaughterboat comprise at least one nozzle member, wherein the nozzle member has at least two nozzle chambers, each having a jet outlet opening, wherein the at least two jet outlet openings are arranged at the same working position in the direction of the axis of the tool spindle, wherein the Nozzle element is movably arranged in a plane which is perpendicular to the axis of the tool spindle, and wherein the shape of the jet outlet openings is different.
- the nozzle element can have at least two separate nozzle bodies, each with a nozzle chamber, wherein the jet outlet openings are located at the outlet end of the nozzle body.
- the nozzle element may also have only a single nozzle body with the at least two nozzle chambers, wherein the jet outlet openings are located at the outlet end of the nozzle body.
- the jet outlet openings are preferably rectangular.
- the shape differences then relate in particular to the width and the height of the jet outlet openings.
- All the beam outlet openings are preferably arranged symmetrically to the plane which is perpendicular to the axis of the tool spindle.
- the nozzle element can be arranged pivotable about an axis for positioning or diameter tracking, which is arranged parallel to the axis of the tool spindle.
- the nozzle element is arranged to be translationally movable in the plane which is perpendicular to the axis of the tool spindle.
- the nozzle element is preferably arranged movably on a linear guide.
- the nozzle element can be designed for individually controlled admission of each of the nozzle chambers with cooling lubricant. Alternatively, it is also possible that at least two nozzle chambers of the nozzle element are designed for simultaneous application of cooling lubricant.
- the nozzle element may be arranged stationarily on or on the tool carrier in the direction of the axis of the tool spindle. It can also be displaced in this direction on a linear guide relative to the tool carrier be arranged. Furthermore, it is possible for the nozzle element to be arranged fixedly on or on the machine bed in the direction of the axis. Finally, it is also possible that the nozzle element is displaceably arranged in the direction mentioned on a linear guide relative to the machine bed.
- the hard finishing tools according to a preferred embodiment of the invention gear processing tools, in particular a grinding wheel or a grinding worm.
- Proposed is therefore the combination of several - especially two - nozzles at a working position of the tool spindle, which are provided for maintaining or setting the optimum position with movement means.
- the nozzles thus have an adjustment in the plane which is perpendicular to the axis of the tool spindle.
- the above problem can be solved in full with the proposed solution. Accordingly, it is achieved that even with the use of a wide variety of hard finishing tools, in particular grinding tools, the cooling lubricant supply conditions can be optimized.
- the adaptation of the coolant lubricant supply means is possible in a simple manner automatically via the machine control.
- Fig. 1 is a hard finishing machine 1 in the form of a gear grinding machine to see that has a machine bed (machine base frame) 8.
- This is - inter alia - a tool carrier (carriage) 7 arranged linearly displaceable, which carries a tool spindle 5.
- the with the tools 3, 4 to machining workpiece 2 is clamped on a workpiece spindle 20; In this case, the workpiece axis is aligned vertically.
- the tool spindle 5 has an axis 6. In the direction of this axis, the tool spindle 5 can be moved on the tool carrier 7 in the registered Y-direction in order to bring the tools 3, 4 selectively in engagement with the workpiece 2.
- the gear grinding machine of the previously known designs.
- the other required machine axes which are of course necessary for processing, will not be further discussed here, since they are not relevant to the invention.
- coolant lubricant supply means 9 which serves for the supply of cooling lubricant to the contact point between the tool 3, 4 and the workpiece 2.
- the cooling lubricant supply means 9 comprises a nozzle element 10, as according to a first exemplary embodiment in FIG Fig. 2 you can see.
- the nozzle element 10 has two nozzle chambers 11 and 12, each with a jet outlet opening 13 and 14.
- the nozzle element 10 is formed by two nozzle bodies 15 and 16, which are fastened to a carriage 21.
- the nozzle element 10 in a plane E is arranged movable, which is perpendicular to the axis 6 of the tool spindle 5. It is thereby achieved that the respective jet outlet openings 13, 14 for the cooling lubricant can be optimally adapted to the specific tool insert and can be tracked for a dressing-related change in diameter of the grinding tool. Accordingly, the carriage 21 can be moved on a linear guide 19 in a translational displacement direction V in order to bring the respectively optimally designed and suitable for the specific application nozzle body to the contact point between the tool and workpiece, namely on the current diameter of the grinding tool.
- the two jet outlet openings 13 and 14 are formed differently. They are each rectangular in shape, with the height and width of the outlet openings being optimally adapted to the concrete tool application case (see the following explanations in connection with FIG Fig. 4 , which apply analogously here). Therefore, it is possible, depending on the tool used to position the best possible nozzle body 15 and 16 and activate.
- the nozzle chambers 11, 12 can optionally be acted upon with cooling lubricant, which causes the machine control.
- the relatively thin, but relatively wide jet outlet opening 13 is optimally suitable for the cooling lubrication of the grinding worm 4 during generating grinding.
- the relatively thick, but less wide jet outlet opening 14 is suitable for the cooling lubrication of the grinding wheel 3 during profile grinding.
- the nozzle body 17 of the coolant supply means 9 is formed here as a one-piece element, in which two nozzle chambers 11 and 12 are formed for the inflow of cooling lubricant.
- the nozzle body 17 is arranged pivotably about an axis 18 which is parallel to the Y-axis. The pivoting S is shown. In this way, the nozzle exit can also be tracked optimally in the case of dressing-related diameter changes of the grinding tool.
- the two nozzle chambers 11 and 12 and the end, ie, the jet outlet openings 13 and 14, formed rectangular.
- the widths B 13 of the jet outlet opening 13 and B 14 of the jet outlet opening 14 and the heights H 13 of the jet outlet opening 13 and H 14 of the jet outlet opening 14 are different.
- the cooling lubricant flows out of the nozzle chamber 12 with a relatively thick jet, which, however, is far less wide, which is optimal for the cooling lubrication of the grinding wheel 3 during profile grinding.
- the displacement movement V or the pivoting movement S may optionally be superimposed on a further movement for the displacement of the nozzle member be adapted to not only optimally adapt to changes in diameter of the grinding tool, but also to be able to bring each optimal beam outlet opening for the relevant grinding tool 3, 4 in working position.
- the nozzle is not moved during normal use during the grinding process.
- This is by definition also the case when the nozzle - as will usually be the case - is mounted on the pivot member and thus not directly, but indirectly connected via the pivot member and the machine stand with the machine bed, so that the nozzle, however is disposed fixedly relative to the bed during normal use (although it can be moved (adjusted) by the pivoting part and the stand relative to the actual machine bed).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Gear Processing (AREA)
Description
Die Erfindung betrifft eine Hartfeinbearbeitungsmaschine zum Hartfeinbearbeiten eines Werkstücks, die mindestens zwei unterschiedliche Hartfeinbearbeitungswerkzeuge umfasst, die auf einer Werkzeugspindel angeordnet sind, wobei die Werkzeugspindel in Richtung ihrer Achse verschieblich auf einem Werkzeugträger angeordnet ist, der relativ zu einem Maschinenbett translatorisch verschieblich ist, und wobei die Hartfeinbearbeitungsmaschine weiterhin Kühlschmierstoffzufühnnittel für die Zuleitung von Kühlschmierstoff zur Bearbeitungsstelle zwischen Werkstück und Hartfeinbearbeitungswerkzeug aufweist.The invention relates to a hard finishing machine for hard finishing a workpiece, comprising at least two different hard finishing tools, which are arranged on a tool spindle, wherein the tool spindle is arranged displaceably in the direction of its axis on a tool carrier, which is translationally displaceable relative to a machine bed, and wherein the Hard finishing machine further has Kühlschmierstoffzufühn Mittel for the supply of cooling lubricant to the processing point between the workpiece and hard finishing tool.
Eine solche Maschine ist beispielsweise in der
Damit der Schleifprozess einwandfrei durchgeführt werden kann und insbesondere eine thermische Überlastung der Zahnflanke vermieden wird, ist eine zuverlässige Versorgung der Kontaktstelle zwischen Schleifwerkzeug und Werkstück sicherzustellen, was durch die Anordnung von Kühlschmierstoffzuführmittel erfolgt.So that the grinding process can be carried out properly and in particular a thermal overload of the tooth flank is avoided, a reliable supply of the contact point between the grinding tool and workpiece, which is done by the arrangement of Kühlschmierstoffzuführmittel.
Die
Für die beiden oben genannten Verfahren bestehen hinsichtlich einer sicheren Vermeidung thermischer Werkstückschädigungen deutlich unterschiedliche Anforderungen an die Kühlmittelzufuhr:For the two methods mentioned above, there are clearly different requirements for the coolant supply with regard to a reliable avoidance of thermal workpiece damage:
Beim kontinuierlichen Wälzschleifen wird aufgrund des Zusammenhangs zwischen Schnittgeschwindigkeit und Bearbeitungszeit üblicherweise mit Schnittgeschwindigkeiten, d. h. Umfangsgeschwindigkeiten der Schleifschnecke, von ca. 60 m/s oder mehr gearbeitet. Zur sicheren Vermeidung thermischer Schädigungen der Werkstückrandzone ist eine möglichst geringe Differenz zwischen Umfangsgeschwindigkeit der Schleifschnecke und der Austrittsgeschwindigkeit des Kühlmittelstrahles anzustreben, d. h. eine relativ hohe Austrittsgeschwindigkeit des Kühlschmierstoffs aus der Kühlschmierstoffdüse ist erforderlich. Diese hohe Geschwindigkeit wird durch einen kleinen Düsenaustrittsquerschnitt und einen hohen Versorgungsdruck erzeugt. Unter diesen Bedingungen stellt sich ein relativ geringer Volumenstrom ein, der sich jedoch nicht negativ auf den Schleifprozess oder die erzeugte Werkstückqualität auswirkt.In continuous hobbing, due to the relationship between cutting speed and machining time, usually at cutting speeds, i. H. Peripheral speeds of the grinding worm, worked from about 60 m / s or more. In order to reliably avoid thermal damage to the workpiece edge zone, the smallest possible difference between the peripheral speed of the grinding worm and the exit velocity of the coolant jet should be aimed at, d. H. a relatively high exit velocity of the cooling lubricant from the coolant nozzle is required. This high speed is generated by a small nozzle outlet area and a high supply pressure. Under these conditions, a relatively low volume flow occurs, but this does not adversely affect the grinding process or the quality of work produced.
Beim Profilschleifen wird dagegen üblicherweise mit niedrigeren Schnittgeschwindigkeiten zwischen 25 und 35 m/s gearbeitet. Dieses Verfahren erfordert eine sichere Abdeckung des gesamten Schleifscheibenprofils durch den Kühlmittelstrahl. In Abhängigkeit von der jeweiligen Profilbreite und -höhe ergibt sich daraus die Forderung nach einem relativ großen Düsenaustrittsquerschnitt, wobei sich ein Kühlmittelstrahl mit geringer Austrittsgeschwindigkeit und niedrigem Druck, aber relativ hohem Volumenstrom einstellt.On the other hand, profile grinding typically uses lower cutting speeds between 25 and 35 m / s. This method requires a secure cover of the entire grinding wheel profile through the coolant jet. Depending on the respective profile width and height, this results in the requirement for a relatively large nozzle outlet cross-section, wherein a coolant jet with a low outlet velocity and low pressure, but sets a relatively high volume flow.
Neben dem genannten speziellen Anwendungsfall der Hartfeinbearbeitung von Verzahnungen sind weitere allgemeine Fälle denkbar, in denen mehrere Werkzeuge mit deutlich unterschiedlichen Anforderungen an die Kühlmittelzufuhr nacheinander zum Einsatz kommen.In addition to the special case of hard fine machining of gears mentioned above, further general cases are conceivable in which several tools with clearly different requirements for the coolant supply are used in succession.
Nach einer üblichen Fertigungsmethode sind im Falle mehrerer Werkzeuge diese in Achsrichtung fluchtend auf einem Werkzeugdorn angeordnet, der zwischen einem Spindelmotor und einem Gegenlager eingespannt ist. Die gesamte Einheit bestehend aus Spindelmotor, Gegenlager, Werkzeugdorn und Werkzeugen ist auf einem in Achsrichtung der Werkzeuge beweglichen Schlitten (Werkzeugträger) angeordnet (zumeist als Y-Achse bezeichnet), mit dem die Werkzeuge in die für die Bearbeitung notwendige axiale Position relativ zum Werkstück gebracht werden.After a conventional manufacturing method, these are arranged in the axial direction in alignment with a tool mandrel in the case of several tools, which is clamped between a spindle motor and an abutment. The entire unit consisting of spindle motor, thrust bearing, tool mandrel and tools is arranged on a movable in the axial direction of the tool carriage (tool carrier) (usually referred to as the Y-axis), with which the tools brought into the axial position necessary for processing relative to the workpiece become.
Die zum Wälzschleifen eingesetzten schneckenförmigen Werkzeuge sind üblicherweise deutlich breiter als die reine Eingriffsbreite, die sich durch den Eingriff von Werkzeug und Werkstück ergibt. Dies hat den Zweck, diverse Shiftmethoden anwenden zu können, um die Zahnräder in spezieller Weise zu schleifen: Eingesetzt wird zunächst das diskontinuierliche Shiften in Werkzeugachsrichtung (Y-Achse) zwischen Schruppen und Schlichten bzw. zwischen der- Bearbeitung einzelner Werkstücke, um neue, unverbrauchte Schneckenbereiche in Eingriff zu bringen. Beim kontinuierlichen Shiften in Werkzeugachsrichtung (Y-Achse) während der Schleifbearbeitung eines Werkstücks (auch als Diagonalschleifen bezeichnet) kann eine gezielte Beeinflussung der Zahnflankentopologie und/oder -oberflächenstruktur erfolgen.The worm-like tools used for generating grinding are usually much wider than the pure engaging width resulting from the engagement of the tool and the workpiece. The purpose of this is to be able to use various shift methods to grind the gears in a special way: First, the discontinuous shifting in Werkzeugachsrichtung (Y-axis) between roughing and finishing or between the - processing of individual workpieces to new, unused Engage screw areas. During continuous shifting in the tool axis direction (Y-axis) during the grinding process of a Workpiece (also referred to as diagonal loops) can be a targeted influencing the tooth flank topology and / or surface structure.
Die hier verwendeten Kühlmitteldüsen können starr ausgeführt sein, d. h. für einen bestimmten, nicht veränderlichen Werkstückdurchmesser optimiert sein, was sich insbesondere für nicht abrichtbare CBN-Schleifwerkzeuge empfiehlt, deren Durchmesser sich nicht ändert. Im Falle von Werkzeugen mit veränderlichem Durchmesser, d. h. namentlich für abrichtbare Schleifwerkzeuge, können die Kühlmitteldüsen so installiert sein, dass diese in einer Ebene, die senkrecht auf der Achse der Werkzeugspindel steht, beweglich angeordnet sind, so dass die Kühlmitteldüse mit abnehmendem Werkzeugdurchmesser entsprechend nachgeführt werden kann. Die Anpassung der Düsenposition an den aktuellen Werkzeugdurchmesser kann durch eine rotatorische oder durch eine translatorische Bewegung erfolgen.The coolant nozzles used here can be made rigid, d. H. be optimized for a specific, non-variable workpiece diameter, which is particularly recommended for non-dressable CBN grinding tools whose diameter does not change. In the case of variable diameter tools, d. H. Namely for dressable grinding tools, the coolant nozzles can be installed so that they are arranged in a plane which is perpendicular to the axis of the tool spindle, movable, so that the coolant nozzle can be tracked with decreasing tool diameter accordingly. The adjustment of the nozzle position to the current tool diameter can be done by a rotary or by a translational movement.
In den vorbekannten Bearbeitungsfällen wird das Werkstück entweder nur mit einem einzigen Werkzeug bearbeitet (z. B. mit einer abrichtbaren Schleifschnecke; das Schruppen und das Schlichten erfolgt mit unterschiedlichen Breitenbereichen des gleichen Werkzeugs) oder es kommen zwei Werkzeuge des gleichen Typs und der gleichen Größe zum Einsatz (z. B. abrichtfreies Profilschleifen mit CBN-Schrupp- und -Schlichtscheibe). In diesen Fällen ist die Verwendung einer einzigen Düse - mit für das jeweils angewendete Werkzeug bzw. Bearbeitungsverfahren optimierten Eigenschaften - problemlos möglich.In the previously known machining cases, the workpiece is either machined only with a single tool (eg with a dressable grinding worm, roughing and finishing takes place with different width ranges of the same tool) or two tools of the same type and the same size are used Use (eg dressless profile grinding with CBN roughing and flattening disc). In these cases, the use of a single nozzle - with optimized for the particular tool or machining process properties - easily possible.
Eine Kombination mehrerer Werkzeuge bzw. Bearbeitungsverfahren unterschiedlicher Art kommt üblicherweise zum Einsatz bei der Bearbeitung mehrerer Verzahnungen des gleichen Werkstücks in einer Aufspannung (z. B. Getriebewellen) oder bei der Bearbeitung einer Verzahnung mit unterschiedlichen Verfahren für das Schruppen und das Schlichten (z. B. Schruppen mit abrichtbarem Wälzschleifen, Schlichten mit abrichtfreiem Profilschleifen - wie eingangs erläutert).A combination of several tools or machining methods of different types is usually used when machining a plurality of teeth of the same workpiece in one clamping (eg. Gear shafts) or when machining a toothing with different methods for roughing and finishing (eg roughing with dressable generating grinding, finishing with non-directional profile grinding - as explained in the beginning).
In diesen Fällen sind folgende Varianten der Kühlmittelzufuhr bekannt:In these cases, the following variants of the coolant supply are known:
Bekannt ist die Verwendung der gleichen Düse (mit oder ohne der oben genannten Durchmessemachführung) für die unterschiedlichen Werkzeuge. Dies hat den Nachteil, dass die Bedingungen der Kühlmittelzufuhr nicht für jedes verwendete Werkzeug optimiert sein können. Deswegen ist die Bearbeitung für mindestens eines der verwendeten Werkzeuge nur mit reduzierter Vorschubgeschwindigkeit möglich, woraus eine längere Bearbeitungszeit und damit ein Wirtschaftlichkeitsverlust resultieren.Known is the use of the same nozzle (with or without the above-mentioned diameter guide) for the different tools. This has the disadvantage that the conditions of the coolant supply can not be optimized for each tool used. Therefore, the machining is possible for at least one of the tools used only with reduced feed rate, resulting in a longer processing time and thus a loss of efficiency result.
Bekannt ist ferner, dass mehrere Düsen auf dem Schlitten der Y-Achse angeordnet sind, die mit dem Schlitten mitfahren, wobei die Düsen ihre Position relativ zum jeweiligen Werkzeug nicht verändern. Als nachteilig ergibt sich in diesem Falle folgendes: Damit im Falle des Wälzschleifens mit einem schneckenförmigen Werkzeug die oben genannten Shiftverfahren angewendet werden können, muss eine auf dem Schlitten der Y-Achse mitfahrende Düse so breit sein wie das gesamte Werkzeug, d. h. deutlich breiter also, als es aufgrund der effektiven Eingriffsbreite zwischen Werkzeug und Werkstück erforderlich wäre. Bei konstanter Austrittshöhe der Düsenöffnung vergrößert sich durch die Verbreiterung der Düse aber auch der Düsenquerschnitt, was im Widerspruch zu den für das Wälzschleifen als optimal geltenden Bedingungen steht. Auch in diesem Fall kann die Bearbeitung aufgrund der nicht optimalen Bedingungen der Kühlmittelzufuhr nur mit reduzierter. Vorschubgeschwindigkeit und damit mit längeren Bearbeitungszeiten und daher mit reduzierter Wirtschaftlichkeit durchgeführt werden.It is also known that a plurality of nozzles are arranged on the carriage of the Y-axis, which ride with the carriage, wherein the nozzles do not change their position relative to the respective tool. The disadvantage in this case is as follows: In order to be able to use the abovementioned shift method in the case of hobbing with a helical tool, a nozzle traveling on the slide of the Y-axis must be as wide as the entire tool, ie significantly wider. as would be required due to the effective engagement width between tool and workpiece. With a constant exit height of the nozzle opening, the widening of the nozzle also increases the nozzle cross-section, which is in contradiction to the conditions considered optimal for generating grinding. Also in this case, the processing can only be reduced due to the non-optimal conditions of the coolant supply. Feed speed and thus with longer Processing times and therefore be carried out with reduced cost.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Hartfeinbearbeitungsmaschine der eingangs genannten Art so hinsichtlich der Kühlschmierstoffzuführmittel auszubilden, dass die oben genannten Nachteile vermieden werden und dass die Anwendung aller denkbaren Werkzeug- und Verfahrenskombinationen unter optimalen Kühlschmierstoff-Versorgungsbedingungen stattfinden können. Für jeden Werkzeugtyp und für jedes Bearbeitungsverfahren sollen jeweils die als optimal geltenden Bedingungen der Kühlmittelzufuhr eingestellt werden können. Weiterhin soll eine automatische Anpassung der Bedingungen der Kühlmittelzufuhr an das jeweils eingesetzte Werkzeug bzw. Bearbeitungsverfahren innerhalb eines Bearbeitungszyklus ohne Bedienereingriff möglich sein, d. h. ausgelöst durch die Maschinensteuerung.The invention is therefore based on the object with regard to the Kühlschmierstoffzuführmittel form a hard finishing machine of the type mentioned above, that the above-mentioned disadvantages are avoided and that the application of all conceivable tool and process combinations can take place under optimal cooling lubricant supply conditions. For each type of tool and for each machining process, the optimal conditions of the coolant supply should be able to be set. Furthermore, an automatic adaptation of the conditions of the coolant supply to the respectively used tool or machining method should be possible within a processing cycle without operator intervention, ie triggered by the machine control.
Die Lösung dieser Aufgabe durch die Erfindung ist dadurch gekennzeichnet, dass die Kühlschmierstoffzuführmittel mindestens ein Düsenelement umfassen, wobei das Düsenelement mindestens zwei Düsenkammern mit je einer Strahlaustrittsöffnung hat, wobei die mindestens zwei Strahlaustrittsöffnungen an derselben Arbeitsposition in Richtung der Achse der Werkzeugspindel angeordnet sind, wobei das Düsenelement in einer Ebene beweglich angeordnet ist, die senkrecht auf der Achse der Werkzeugspindel steht, und wobei die Form der Strahlaustrittsöffnungen unterschiedlich ist.The solution of this object by the invention is characterized in that the Kühlschmierstoffzuführmittel comprise at least one nozzle member, wherein the nozzle member has at least two nozzle chambers, each having a jet outlet opening, wherein the at least two jet outlet openings are arranged at the same working position in the direction of the axis of the tool spindle, wherein the Nozzle element is movably arranged in a plane which is perpendicular to the axis of the tool spindle, and wherein the shape of the jet outlet openings is different.
Das Düsenelement kann dabei mindestens zwei separate Düsenkörper mit je einer Düsenkammer aufweisen, wobei sich die Strahlaustrittsöffnungen am Auslassende der Düsenkörper befinden.The nozzle element can have at least two separate nozzle bodies, each with a nozzle chamber, wherein the jet outlet openings are located at the outlet end of the nozzle body.
Das Düsenelement kann alternativ auch nur einen einzigen Düsenkörper mit den mindestens zwei Düsenkammern aufweisen, wobei sich die Strahlaustrittsöffnungen am Auslassende des Düsenkörpers befinden.Alternatively, the nozzle element may also have only a single nozzle body with the at least two nozzle chambers, wherein the jet outlet openings are located at the outlet end of the nozzle body.
Die Strahlaustrittsöffnungen sind vorzugsweise rechteckförmig. Die Formunterschiede betreffen dann insbesondere die Breite und die Höhe der Strahlaustrittsöffnungen.The jet outlet openings are preferably rectangular. The shape differences then relate in particular to the width and the height of the jet outlet openings.
Alle Strahlaustrittsöffnungen sind bevorzugt symmetrisch zur Ebene angeordnet, die senkrecht auf der Achse der Werkzeugspindel steht.All the beam outlet openings are preferably arranged symmetrically to the plane which is perpendicular to the axis of the tool spindle.
Das Düsenelement kann zur Positionierung bzw. Durchmessernachführung um eine Achse verschwenkbar angeordnet sein, die parallel zur Achse der Werkzeugspindel angeordnet ist.The nozzle element can be arranged pivotable about an axis for positioning or diameter tracking, which is arranged parallel to the axis of the tool spindle.
Alternativ ist es zu dem genannten Zweck auch möglich, dass das Düsenelement translatorisch in der Ebene beweglich angeordnet ist, die senkrecht auf der Achse der Werkzeugspindel steht. Das Düsenelement ist dabei bevorzugt auf einer Linearführung beweglich angeordnet.Alternatively, it is also possible for the stated purpose that the nozzle element is arranged to be translationally movable in the plane which is perpendicular to the axis of the tool spindle. The nozzle element is preferably arranged movably on a linear guide.
Das Düsenelement kann zur individuell gesteuerten Beaufschlagung jeder der Düsenkammer mit Kühlschmierstoff ausgebildet sein. Alternativ möglich ist es aber auch, dass mindestens zwei Düsenkammern des Düsenelements zur gleichzeitigen Beaufschlagung mit Kühlschmierstoff ausgebildet sind.The nozzle element can be designed for individually controlled admission of each of the nozzle chambers with cooling lubricant. Alternatively, it is also possible that at least two nozzle chambers of the nozzle element are designed for simultaneous application of cooling lubricant.
Das Düsenelement kann in Richtung der Achse der Werkzeugspindel ortsfest an oder auf dem Werkzeugträger angeordnet sein. Es kann in dieser Richtung auch auf einer Linearführung relativ zum Werkzeugträger verschieblich angeordnet sein. Weiterhin ist es möglich, dass das Düsenelement in Richtung der Achse ortsfest an oder auf dem Maschinenbett angeordnet ist. Möglich ist es schließlich auch, dass das Düsenelement in der genannten Richtung auf einer Linearführung relativ zum Maschinenbett verschieblich angeordnet ist.The nozzle element may be arranged stationarily on or on the tool carrier in the direction of the axis of the tool spindle. It can also be displaced in this direction on a linear guide relative to the tool carrier be arranged. Furthermore, it is possible for the nozzle element to be arranged fixedly on or on the machine bed in the direction of the axis. Finally, it is also possible that the nozzle element is displaceably arranged in the direction mentioned on a linear guide relative to the machine bed.
Die Hartfeinbearbeitungswerkzeuge sind gemäß einer bevorzugten Ausführungsform der Erfindung Zahnradbearbeitungswerkzeuge, insbesondere eine Schleifscheibe oder eine Schleifschnecke.The hard finishing tools according to a preferred embodiment of the invention gear processing tools, in particular a grinding wheel or a grinding worm.
Vorgeschlagen ist also die Kombination mehrerer - insbesondere zweier - Düsen an einer Arbeitsposition der Werkzeugspindel, die zur Einhaltung bzw. Einstellung der optimalen Position mit Bewegungsmitteln versehen sind. Die Düsen haben also eine Verstellmöglichkeit in der Ebene, die senkrecht auf der Achse der Werkzeugspindel steht.Proposed is therefore the combination of several - especially two - nozzles at a working position of the tool spindle, which are provided for maintaining or setting the optimum position with movement means. The nozzles thus have an adjustment in the plane which is perpendicular to the axis of the tool spindle.
In vorteilhafter Weise kann mit der vorgeschlagenen Lösung die oben gestellte Aufgabe vollumfänglich gelöst werden. Demnach wird erreicht, dass auch beim Einsatz verschiedenster Hartfeinbearbeitungswerkzeuge, insbesondere von Schleifwerkzeugen, die Kühlschmierstoff-Versorgungsbedingungen optimiert werden können. Die Anpassung der Kühlschmierstoffzuführmittel ist in einfacher Weise automatisch über die Maschinensteuerung möglich.Advantageously, the above problem can be solved in full with the proposed solution. Accordingly, it is achieved that even with the use of a wide variety of hard finishing tools, in particular grinding tools, the cooling lubricant supply conditions can be optimized. The adaptation of the coolant lubricant supply means is possible in a simple manner automatically via the machine control.
Vorgeschlagen sind also Lösungen zur Kühlmittelzufuhr für Bearbeitungsverfahren, bei denen mehrere Werkzeuge nacheinander in der gleichen Position relativ zu dem zu bearbeitenden Werkstück eingesetzt werden und wobei sich die Anforderungen an die Kühlmittelzufuhr (insbesondere betreffend den Austrittsquerschnitt, die Austrittsgeschwindigkeit, den Volumenstrom und den Druck) in Abhängigkeit der eingesetzten Werkzeuge und Bearbeitungsverfahren deutlich unterscheiden.Proposed are therefore solutions for coolant supply for machining processes in which several tools are used successively in the same position relative to the workpiece to be machined and where the requirements for the coolant supply (in particular concerning the outlet cross section, the exit velocity, the volume flow and the pressure) differ significantly depending on the tools and machining methods used.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:
- Fig. 1
- in perspektivischer Ansicht eine Hartfeinbearbeitungsmaschine, ausgebildet als Verzahnungsschleifmaschine, die eine Schleif- scheibe und eine Schleifschnecke als Schleifwerkzeuge aufweist, die von einem Kühlschmierstoffzuführmittel mit Kühlmittel versorgt werden,
- Fig. 2
- ein erstes Ausführungsbeispiel der Kühlschmierstoffzuführmittel, gesehen in Richtung Achse der Werkzeugspindel (Y-Achse), ausgestattet mit translatorischen Verschiebemitteln für ein Düsenelement,
- Fig. 3
- ein zweites Ausführungsbeispiel der Kühlschmierstoffzuführmittel, gesehen in Richtung Achse der Werkzeugspindel (Y-Achse), ausgestattet mit rotatorischen Verschiebemitteln für ein Düsenelement, und
- Fig. 4
- den Schnitt A-A gemäß
Fig. 3 .
- Fig. 1
- 3 is a perspective view of a hard finishing machine designed as a gear grinding machine, which has a grinding wheel and a grinding worm as grinding tools, which are supplied with coolant by a cooling lubricant supply means,
- Fig. 2
- a first embodiment of the Kühlschmierstoffzuführmittel, seen in the direction of the axis of the tool spindle (Y-axis), equipped with translational displacement means for a nozzle element,
- Fig. 3
- a second embodiment of the Kühlschmierstoffzuführmittel, seen in the direction of the axis of the tool spindle (Y-axis), equipped with rotary displacement means for a nozzle member, and
- Fig. 4
- the section AA according to
Fig. 3 ,
In
Die Werkzeugspindel 5 weist eine Achse 6 auf. In Richtung dieser Achse kann die Werkzeugspindel 5 auf dem Werkzeugträger 7 in die eingetragene Y-Richtung verschoben werden, um die Werkzeuge 3, 4 wahlweise in Eingriff mit dem Werkstück 2 zu bringen. Insoweit entspricht die Verzahnungsschleifmaschine der vorbekannten Bauformen. Die weiteren benötigten Maschinenachsen, die natürlich für die Bearbeitung notwendig sind, werden hier nicht weiter thematisiert, da sie für die Erfindung nicht relevant sind.The tool spindle 5 has an
Wesentlich ist nunmehr das Kühlschmierstoffzuführmittel 9, das für die Zuführung von Kühlschmierstoff zur Kontaktstelle zwischen Werkzeug 3, 4 und Werkstück 2 dient.What is essential now is the coolant lubricant supply means 9, which serves for the supply of cooling lubricant to the contact point between the tool 3, 4 and the workpiece 2.
Erfindungsgemäß umfasst das Kühlschmierstoffzuführmittel 9 ein Düsenelement 10, wie es gemäß einem ersten Ausführungsbeispiel in
Wesentlich ist dabei, dass das Düsenelement 10 in einer Ebene E (s.
Die beiden Strahlaustrittsöffnungen 13 und 14 sind unterschiedlich ausgebildet. Sie sind jeweils rechteckförmig, wobei die Höhe und Breite der Austrittsöffnungen an den konkreten Werkzeugeinsatzfall optimal angepasst ist (s. hierzu die nachfolgenden Ausführungen im Zusammenhang mit
Die Düsenkammern 11, 12 können wahlweise mit Kühlschmierstoff beaufschlagt werden, was die Maschinensteuerung veranlasst.The
Die relativ dünne, aber relativ breite Strahlaustrittsöffnung 13 ist optimal für das Kühlschmieren der Schleifschnecke 4 beim Wälzschleifen geeignet. Indes ist die relativ dicke, aber weniger breite Strahlaustrittsöffnung 14 für das Kühlschmieren der Schleifscheibe 3 beim Profilschleifen geeignet.The relatively thin, but relatively wide jet outlet opening 13 is optimally suitable for the cooling lubrication of the grinding worm 4 during generating grinding. However, the relatively thick, but less wide jet outlet opening 14 is suitable for the cooling lubrication of the grinding wheel 3 during profile grinding.
In
Wie anhand des Schnitts A-A gemäß
Demgemäß ergibt sich bei Ausfluss des Kühlschmiermittels durch die Düsenkammer 11 ein breiter, aber relativ dünner Strahl, der optimal für das Kühlschmieren der Schleifschnecke 4 beim Wälzschleifen ist.Accordingly, upon discharge of the cooling lubricant through the
Dem gegenüber fließt der Kühlschmierstoff bei Austritt aus der Düsenkammer 12 mit einem relativ dicken Strahl aus, der allerdings weit weniger breit ist, der optimal für das Kühlschmieren der Schleifscheibe 3 beim Profilschleifen ist.On the other hand, the cooling lubricant flows out of the
Der Verschiebebewegung V bzw. der Schwenkbewegung S kann ggf. noch eine weitere Bewegung zur Verschiebung des Düsenelements überlagert werden, um nicht nur optimal an Durchmesserveränderungen des Schleifwerkzeugs anpassen zu können, sondern auch die jeweils optimale Strahlaustrittsöffnung für das betreffende Schleifwerkzeug 3, 4 in Arbeitsposition bringen zu können.The displacement movement V or the pivoting movement S may optionally be superimposed on a further movement for the displacement of the nozzle member be adapted to not only optimally adapt to changes in diameter of the grinding tool, but also to be able to bring each optimal beam outlet opening for the relevant grinding tool 3, 4 in working position.
Soweit vorstehend von einer (im Raum absolut) ortsfesten Anordnung der Düse an oder auf dem Maschinenbett die Rede ist, sei hierzu folgendes angemerkt: Auf dem eigentlichen Maschinenbett ist zumeist ein Maschinenständer (beweglich) angeordnet, wobei auf dem Ständer wiederum ein Schwenkteil (beweglich) angeordnet ist. Auf dem Schwenkteil ist dann z. B. ein Schlitten auf einer Linearführung (für die Y-Achse) beweglich angeordnet.As far as above of a (absolutely absolute in space) arrangement of the nozzle on or on the machine bed is mentioned, the following should be noted: On the actual machine bed usually a machine stand (movable) is arranged, in turn on the stand a pivoting part (movable) is arranged. On the swivel part is then z. B. a carriage on a linear guide (for the Y-axis) arranged to be movable.
Unter der Angabe einer ortsfesten Anordnung der Düse an oder auf dem Maschinenbett ist zu verstehen, dass die Düse bei bestimmungsgemäßem Gebrauch während des Schleifvorgangs nicht bewegt wird. Dies ist also definitionsgemäß auch dann der Fall, wenn die Düse - wie es zumeist der Fall sein wird - auf dem Schwenkteil befestigt ist und somit nicht direkt, sondern über das Schwenkteil und den Maschinenständer indirekt mit dem Maschinenbett verbunden ist, so dass die Düse allerdings bei der bestimmungsgemäßer Benutzung relativ zum Bett ortsfest angeordnet ist (obwohl sie durch das Schwenkteil und den Ständer relativ zum eigentlichen Maschinenbett bewegt (verstellt) werden kann).By specifying a fixed arrangement of the nozzle on or on the machine bed is to be understood that the nozzle is not moved during normal use during the grinding process. This is by definition also the case when the nozzle - as will usually be the case - is mounted on the pivot member and thus not directly, but indirectly connected via the pivot member and the machine stand with the machine bed, so that the nozzle, however is disposed fixedly relative to the bed during normal use (although it can be moved (adjusted) by the pivoting part and the stand relative to the actual machine bed).
- 11
- HartfeinbearbeitungsmaschineHard finishing machine
- 22
- Werkstückworkpiece
- 33
- Hartfeinbearbeitungswerkzeug (Schleifscheibe)Hard finishing tool (grinding wheel)
- 44
- Hartfeinbearbeitungswerkzeug (Schleifschnecke)Hard finishing tool (grinding worm)
- 55
- Werkzeugspindeltool spindle
- 66
- Achseaxis
- 77
- Werkzeugträgertool carrier
- 88th
- Maschinenbett (Maschinengrundrahmen)Machine bed (machine base frame)
- 99
- KühlschmierstoffzuführmittelKühlschmierstoffzuführmittel
- 1010
- Düsenelementnozzle member
- 1111
- Düsenkammernozzle chamber
- 1212
- Düsenkammernozzle chamber
- 1313
- StrahlaustrittsöffnungBlast opening
- 1414
- StrahlaustrittsöffnungBlast opening
- 1515
- Düsenkörpernozzle body
- 1616
- Düsenkörpernozzle body
- 1717
- Düsenkörpernozzle body
- 1818
- Achseaxis
- 1919
- Linearführunglinear guide
- 2020
- WerkstückspindelWorkpiece spindle
- 2121
- Schlittencarriage
- YY
- Achsrichtung der WerkzeugspindelAxial direction of the tool spindle
- Ee
- Ebenelevel
- B13 B 13
- Breitewidth
- B14 B 14
- Breitewidth
- H13 H 13
- Höheheight
- H14 H 14
- Höheheight
- VV
- Verschieberichtungdisplacement direction
- SS
- Verschwenkrichtungpivoting
Claims (14)
- Hard finish machine (1) for hard finishing of a workpiece (2), comprising at least two different hard finish tools (3, 4) which are arranged on a tool spindle (5), wherein the tool spindle (5) is arranged movable in the direction (Y) of its axis (6) on a tool carrier (7), wherein the tool carrier (7) is translational movable relatively to a machine bed (8) and wherein the hard finish machine furthermore comprises cooling lubricant supplying means (9) for the supply of cooling lubricant to the machining region between the workpiece (2) and the hard finish tool (2, 3), wherein the cooling lubricant supplying means (9) comprise at least one nozzle element (10), wherein the nozzle element (10) comprises at least two nozzle chambers (11, 12) each having a stream exit opening (13, 14) and wherein the nozzle element (10) is movable in a plane (E) which is perpendicular to the axis (6) of the tool spindle (5),
characterized in that
the at least two stream exit openings (13, 14) are arranged at the same working position in the direction (Y) of the axis (6) of the tool spindle (5), wherein the form of the stream exit openings (13, 14) is different. - Hard finish machine according to claim 1, characterized in that the nozzle element (10) has at least two separate nozzle bodies (15, 16) each having a nozzle chamber (11, 12), wherein the stream exit openings (13, 14) are arranged at the outlet end of the nozzle bodies (15, 16).
- Hard finish machine according to claim 1, characterized in that the nozzle element (10) has a single nozzle body (17) with the at least two nozzle chambers (11, 12), wherein the stream exit openings (13, 14) are arranged at the outlet end of the nozzle body (17).
- Hard finish machine according to one of claims 1 to 3, characterized in that the stream exit openings (13, 14) have a rectangular shape.
- Hard finish machine according to one of claims 1 to 4, characterized in that the differences in the form relate to the width (B13, B14) and the height (H13, H14) of the stream exit openings (13, 14).
- Hard finish machine according to one of claims 1 to 5, characterized in that all stream exit openings (13, 14) are arranged symmetrically to the plane (E) which is perpendicular to the axis (6) of the tool spindle (5).
- Hard finish machine according to one of claims 1 to 6, characterized in that the nozzle element (10) is arranged pivotable around an axis (18) which is parallel to the axis (6) of the tool spindle (5).
- Hard finish machine according to one of claims 1 to 6, characterized in that the nozzle element (10) is arranged translational movable in the plane (E) which is perpendicular to the axis (6) of the tool spindle (5).
- Hard finish machine according to claim 8, characterized in that the nozzle element (10) is arranged movable on a linear guide (19).
- Hard finish machine according to one of claims 1 to 9, characterized in that the nozzle element (10) is arranged stationary in the direction (Y) of the axis (6) of the tool spindle (5) at or on the tool carrier (7).
- Hard finish machine according to one of claims 1 to 9, characterized in that the nozzle element (10) is arranged movable on a linear guide in the direction (Y) of the axis (6) of the tool spindle (5) relatively to the tool carrier (7).
- Hard finish machine according to one of claims 1 to 9, characterized in that the nozzle element (10) is arranged stationary in the direction (Y) of the axis (6) of the tool spindle (5) at or on the machine bed (8).
- Hard finish machine according to one of claims 1 to 9, characterized in that the nozzle element (10) is arranged movable on a linear guide in the direction (Y) of the axis (6) of the tool spindle (5) relatively to the machine bed (8).
- Hard finish machine according to one of claims 1 to 13, characterized in that the hard finish tools (3, 4) are gear machining tools, especially a grinding wheel or a grinding worm.
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DE102009043677A DE102009043677A1 (en) | 2009-10-01 | 2009-10-01 | Hard finishing machine for hard finishing of a workpiece |
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EP2308638A1 EP2308638A1 (en) | 2011-04-13 |
EP2308638B1 true EP2308638B1 (en) | 2012-08-22 |
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US (1) | US20110081844A1 (en) |
EP (1) | EP2308638B1 (en) |
JP (1) | JP2011079125A (en) |
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JPH0219467U (en) * | 1988-07-26 | 1990-02-08 | ||
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JPH07506301A (en) * | 1993-02-18 | 1995-07-13 | キャタピラー インコーポレイテッド | Grinding and finishing worm |
JP2571852Y2 (en) * | 1993-12-25 | 1998-05-20 | オークマ株式会社 | Grinding fluid nozzle with splash prevention nozzle |
JPH07241770A (en) * | 1994-03-08 | 1995-09-19 | Nissan Motor Co Ltd | Grinding liquid feeding device |
GB9726981D0 (en) * | 1997-12-22 | 1998-02-18 | Rolls Royce Plc | Method and apparatus for grinding |
EP1113902A4 (en) * | 1998-06-22 | 2002-04-24 | Tru Tech Systems Inc | Grinding machine, computer software to operate such a machine, and their uses therefor |
JP3244072B2 (en) * | 1998-09-09 | 2002-01-07 | 豊田工機株式会社 | Cooling method in grinding |
DE29900753U1 (en) * | 1999-01-18 | 1999-04-22 | Hawema Werkzeugschleifmaschinen GmbH, 78647 Trossingen | Coolant supply system for cutting machine tools |
JP2001198770A (en) * | 2000-01-12 | 2001-07-24 | Ebara Corp | Cutting oil supplying device |
GB0217593D0 (en) * | 2002-07-30 | 2002-09-11 | Raysun Innovative Design Ltd | Method and apparatus for grinding |
DE10240509C5 (en) * | 2002-09-03 | 2017-04-27 | Reishauer Ag | Gear and thread grinding machine |
AU2004230856B2 (en) * | 2003-03-31 | 2008-07-24 | The Gleason Works | Coolant delivery apparatus for machine tool |
JP4238624B2 (en) * | 2003-04-25 | 2009-03-18 | 株式会社ジェイテクト | Grinding machine |
DE102006009547A1 (en) * | 2006-02-28 | 2007-08-30 | Reishauer Ag | Coolant nozzle correct setting monitoring method for grinding machine, involves comparing power consumption value obtained from two measurements to asses or displace setting of coolant nozzle |
JP4665018B2 (en) * | 2008-07-28 | 2011-04-06 | 株式会社東芝 | Processing method |
-
2009
- 2009-10-01 DE DE102009043677A patent/DE102009043677A1/en not_active Withdrawn
-
2010
- 2010-09-20 EP EP10009901A patent/EP2308638B1/en active Active
- 2010-09-29 CN CN201010295789XA patent/CN102029548A/en active Pending
- 2010-09-30 JP JP2010220889A patent/JP2011079125A/en active Pending
- 2010-09-30 US US12/894,349 patent/US20110081844A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2011079125A (en) | 2011-04-21 |
CN102029548A (en) | 2011-04-27 |
US20110081844A1 (en) | 2011-04-07 |
EP2308638A1 (en) | 2011-04-13 |
DE102009043677A1 (en) | 2011-04-14 |
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